Crossword Genius

Common devout woman has nothing in parliament, say (10,4)

Ross

I believe the answer is:

geographic area

I'm a little stuck... Click here to teach me more about this clue!

'in parliament say' is the definition.
(I know that Rugsund is a human settlement)

'common devout woman has nothing' is the wordplay.
I cannot really understand how this works, but
'woman' could be 'rea' and 'rea' is present in the answer.
'nothing' could be 'o' (looks like zero - 0) and 'o' is found in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

I've seen this clue in The Daily Express.
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